diff --git a/llvm/include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h b/llvm/include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h
--- a/llvm/include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h
@@ -243,6 +243,8 @@
   static void consumeAbandoned(ErrorReturnType RetOrErr) {
     consumeError(RetOrErr.takeError());
   }
+
+  ErrorReturnType returnError(Error Err) { return std::move(Err); }
 };
 
 // ResultTraits specialization for void functions.
@@ -275,6 +277,8 @@
   static void consumeAbandoned(ErrorReturnType Err) {
     consumeError(std::move(Err));
   }
+
+  ErrorReturnType returnError(Error Err) { return Err; }
 };
 
 // ResultTraits<Error> is equivalent to ResultTraits<void>. This allows
@@ -1494,8 +1498,9 @@
   typename detail::ResultTraits<AltRetT>::ErrorReturnType
   callB(const ArgTs &...Args) {
     bool ReceivedResponse = false;
-    using ResultType = typename detail::ResultTraits<AltRetT>::ErrorReturnType;
-    auto Result = detail::ResultTraits<AltRetT>::createBlankErrorReturnValue();
+    using RTraits = detail::ResultTraits<AltRetT>;
+    using ResultType = typename RTraits::ErrorReturnType;
+    ResultType Result = RTraits::createBlankErrorReturnValue();
 
     // We have to 'Check' result (which we know is in a success state at this
     // point) so that it can be overwritten in the async handler.
@@ -1508,22 +1513,19 @@
               return Error::success();
             },
             Args...)) {
-      detail::ResultTraits<typename Func::ReturnType>::consumeAbandoned(
-          std::move(Result));
-      return std::move(Err);
+      RTraits::consumeAbandoned(std::move(Result));
+      return RTraits::returnError(std::move(Err));
     }
 
     if (auto Err = this->C.send()) {
-      detail::ResultTraits<typename Func::ReturnType>::consumeAbandoned(
-          std::move(Result));
-      return std::move(Err);
+      RTraits::consumeAbandoned(std::move(Result));
+      return RTraits::returnError(std::move(Err));
     }
 
     while (!ReceivedResponse) {
       if (auto Err = this->handleOne()) {
-        detail::ResultTraits<typename Func::ReturnType>::consumeAbandoned(
-            std::move(Result));
-        return std::move(Err);
+        RTraits::consumeAbandoned(std::move(Result));
+        return RTraits::returnError(std::move(Err));
       }
     }